CN106894780A - A kind of docking of L-type well magnetic steering inserting tube conveying device and docking calculation - Google Patents
A kind of docking of L-type well magnetic steering inserting tube conveying device and docking calculation Download PDFInfo
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- CN106894780A CN106894780A CN201710149712.3A CN201710149712A CN106894780A CN 106894780 A CN106894780 A CN 106894780A CN 201710149712 A CN201710149712 A CN 201710149712A CN 106894780 A CN106894780 A CN 106894780A
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- 238000003032 molecular docking Methods 0.000 title claims abstract description 31
- 238000004364 calculation method Methods 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 68
- 238000004891 communication Methods 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005553 drilling Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 239000011152 fibreglass Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides one kind " L " type well docking magnetic steering inserting tube conveying device and docking calculation, belong to seam mining equipment technical field, including：Nacelle one end has passage, the nacelle other end is resistance to compression storehouse, two detection centralizers are provided with nacelle, one detection centralizer is near passage, another detection centralizer is near resistance to compression storehouse, detection damper is additionally provided between another detection centralizer and resistance to compression storehouse, magnetic steering inserting tube one end is fixedly connected with a detection centralizer one end, the magnetic steering inserting tube other end is fixedly connected with another detection centralizer other end, passage end is provided with the excessive block of connection, the passage other end is provided with communication helix, and sucker rod is fixedly connected with the excessive block other end is connected.The device is able to ensure that accurate location of the magnetic steering inserting tube reception device in well using sucker rod combination punching cable transfer mode.
Description
Technical field
The invention belongs to seam mining equipment technical field, and in particular to a kind of " L " docking of type well is defeated with magnetic steering inserting tube
Send device and docking calculation.
Background technology
In the exploitation of coal bed gas block, the destruction of soil vegetation was reduced in order to cost-effective later from 2010, used
The development scheme of " L " type well, fiberglass sieve tube completion is entered under " L " type well horizontal segment.The horizontal well of this well type uses a well two
Mining type, that is, producing well is dual-purpose with the well of engineering well one.To the later stage, these old well capacitys occur in that downslide or stop
The phenomenon of product, undergoes technological transformation for these " L " type wells for having descended fiberglass screen casing, using in the end of " L " type well just
Upper drill with ferrule is certain to well, be allowed to " L " type well end on, so as to improve the recovery ratio of old well, need to bore in this case
A bite directional well is mated with.
In horizontal well, instrument reception device is accurately transported to target, is the key for realizing the docking of " L " type well.
" inserting tube " can be just transported to shaft bottom by conventional docking technique because aperture is big using thicker drilling rod, but because " L " type well
Enter fiberglass screen casing under, aperture is diminished, it is impossible to use more rigid drilling rod.
Conventional is that horizontal well (engineering well) docks straight well (producing well) to the technology of wearing, technique comparative maturity at home
, technique is relatively easy, and this is made in the later cave in cave by entering straight well under signal receiving device (inserting tube), emitter connection
On the drilling tool of engineering well.Straight well (producing well) magnetic steering inserting tube, because there is depth error very little in Action of Gravity Field, if
" L " type underground enters magnetic steering inserting tube, then following several situations occur：
1) because cable is relatively very soft, the error that position is entered under magnetic steering inserting tube is very big, it is impossible to distinguish magnetic steering inserting tube position
Put uncertain.
2) because the well depth of " L " type well is deep to a certain extent, because cable occurs flexible bending, it is transported to magnetic steering spy
Pipe is difficult.
In " L " type well because there is no sufficient space, and a self gravitation effect, in fiberglass, magnetic steering inserting tube can produce with
Wall friction in horizontal well horizontal segment lower wall, so as to cause magnetic steering inserting tube to damage.
Magnetic steering inserting tube is transported to position in order to accurate safety, with reference to current technology both domestic and external, design is ground
Instrument conveying protection device is necessary in hair " L " type well horizontal segment fiberglass.
The content of the invention
In order to overcome the shortcomings of that above-mentioned prior art is present, the invention provides one kind " L " type well docking visited with magnetic steering
Pipe conveying device and and docking calculation.
To achieve these goals, the present invention provides following technical scheme：
It is a kind of " L " type well docking magnetic steering inserting tube conveying device, including connect excessive block, communication helix, two spies
Survey centralizer, detection damper, nacelle and sucker rod；
There is cavity, the communication helix is located in the excessive block of connection, the spy in the middle of the excessive block of connection
Surveying centralizer includes hollow shaft and three locating pieces, and three locating pieces are fixed on the outer wall of the hollow shaft, three institutes
It is 120 ° to state locating piece angle between any two；
The nacelle includes the first cabin and the second cabin, and first cabin one end has passage, and second cabin one end is anti-
Pressure storehouse, the first cabin other end inwall stretches out to form a circle draw-in groove, and the second cabin other end outer wall stretches out shape
Into the fixture block with the slotted engagement, the draw-in groove coordinates with the fixture block so that first cabin and second cabin have been connected
Come, the other end is provided with a detection centralizer in first cabin, the locating piece of the detection centralizer and described the
The inwall in one cabin is abutted, and the other end is provided with another detection centralizer in second cabin, the detection centralizer
Locating piece is abutted with the inwall in second cabin；
The detection damper, the detection damping are additionally provided between another detection centralizer and the resistance to compression storehouse
Device one end is fixedly connected with survey centralizer one end another described, and the detection damper other end and the resistance to compression storehouse are fixed and connected
Connect, magnetic steering inserting tube one end is stretched into a hollow shaft for the detection centralizer, and the magnetic steering inserting tube other end is stretched into separately
In one hollow shaft of the detection centralizer, the excessive block of the connection is located in the passage and in outer wall and the passage
Wall is fixedly connected, and the sucker rod connects excessive block snapping through the excessive block of connection and with described, is set in the sucker rod
There is communication cable, described communication helix one end is connected with the communication cable in the sucker rod, the communication helix is another
Hold through a hollow shaft for the detection centralizer and be connected with the binding post of the magnetic steering inserting tube.
Preferably, the cooling absorber with cavity is additionally provided with first cabin, the cooling absorber is arranged on institute
State between passage and a detection centralizer, the cooling absorber outer wall is provided with external screw thread, and first cabin inwall sets
The external screw thread coordinated with the external screw thread is equipped with, the cooling absorber is spirally connected with first cabin, the communication helix one
End sequentially pass through it is described cooling absorber and one it is described detection centralizer hollow shaft and with the wiring of the magnetic steering inserting tube
Post is connected.
Preferably, also including six universal wheels, wherein three universal wheels are evenly distributed on resistance to compression storehouse outer wall, separately
Outer three universal wheels are evenly distributed on the described first wall out of my cabin.
Preferably, the detection damper is quality of rubber materials.
Another object of the present invention is to provide one kind " L " type well docking calculation, it is characterised in that comprise the following steps：
Magnetic steering inserting tube is arranged in conveying device,
The magnetic steering inserting tube is transported to " L " type well and directional well docking location using sucker rod；
Selection directional well drilling position and shaft building, upper rig；
Rig is opened, well probing is oriented, directional well is drilled into directly over vertical depth distance " L " type well end before 100m, stops
Only drilling well, pulls out of hole, well workover machine equipment on " L " type well；
To magnetic joint is entered under in directional well, magnetic steering docking software constantly corrects target spot data, guiding directional well track；
Open rig and continue drilling well, when directional well is drilled into 10 meters directly over vertical depth distance " L " type well end, directional well stops
Only creep into, conveying device is removed into " L " type well, then directional well continues to creep into and achieved a butt joint until with " L " type；
Directional well carries out completion practice.
Further, the installation steps of the magnetic steering inserting tube are as follows：
By the sucker rod through the excessive block of connection, communication cable one end and the helix one end that communicates in the sucker rod
Connection；
The communication helix other end sequentially passes through cooling absorber and a hollow shaft for detection centralizer；
By it is described cooling absorber be spirally connected with the first cabin, one it is described detect centralizer locating piece and first cabin
Inwall is abutted, and described locating piece of another detection centralizer is abutted with the inwall in the second cabin, and by the sucker rod and
The excessive block snapping of connection；
The communication helix other end is connected with the binding post of the magnetic steering inserting tube, and described magnetic steering inserting tube one end is stretched
Enter in first cabin in the hollow shaft of the detection centralizer, the detection that the other end is stretched into second cabin is helped
In the hollow shaft of positive device, while first cabin and second cabin are coupled together by draw-in groove with fixture block.
What the present invention was provided " L " type well docking magnetic steering inserting tube conveying device and docking calculation have following beneficial effect
Really：
(1) it is able to ensure that magnetic steering inserting tube reception device in well using sucker rod combination punching cable transfer mode
Accurate location；
(2) because " L " type well water horizontal well horizontal segment is long, magnetic steering detection sensor is placed on defeated in transmitting device
The end of horizontal well is sent to, flexible frictional resistance is reduced；
(3) make magnetic steering detection sensor in a safe condition, from the harm of the external environment conditions such as stratum and friction；
(4) magnetic steering his side senser is under non-magnetic environment, cause magnetic signal to be decayed from magnetic disturbance；
(5) docking of " L " type well can to discarded and face the coal bed gas horizontal well scrapped, can play volume increase, synergy,
The effect of re-using.
Brief description of the drawings
Fig. 1 is for the embodiment of the present invention 1 " L " type well docking magnetic steering inserting tube conveying device structural representation；
Fig. 2 is the embodiment of the present invention 2 " L " type well mating operation figure.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is further described.Following examples are only used for more
Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
Embodiment 1
The invention provides one kind " L " type well docking magnetic steering inserting tube conveying device is specific as shown in figure 1, including connecting
Connect excessive device 1, communication helix 2, detection centralizer 4, deviational survey inserting tube 5, detection damper 6, nacelle 9 and sucker rod 10；
The one end of nacelle 9 has passage, and the other end of nacelle 9 is to be provided with two detection centralizers 4 in resistance to compression storehouse 7, nacelle 9,
Near passage, near resistance to compression storehouse 7, another detects centralizer 4 and resistance to compression to another detection centralizer 4 to one detection centralizer 4
Detection damper 6 is additionally provided between storehouse 7, detection one end of damper 6 is fixedly connected with another survey centralizer 4 one end, and detection subtracts
The shake other end of device 6 is fixedly connected with resistance to compression storehouse 7, and deviational survey inserting tube 5, the one end of deviational survey inserting tube 5 are provided between two detection centralizers 4
It is fixedly connected with the one end of detection centralizer 4, the other end of deviational survey inserting tube 5 is fixed with another detection centralizer 4 other end and connected
Connect, passage end is provided with connection excessive device 1, the passage other end is provided with communication helix 2, and communicate the one end of helix 2 and one
The detection other end of centralizer 4 is fixedly connected, and the communication other end of helix 2 is fixedly connected with the one end of excessive device 1 is connected, sucker rod
10 are fixedly connected with the other end of excessive device 1 is connected.
In the present embodiment, connection excessive device 1 is sucker rod 10 is had a Hard link for button-type with nacelle 9, while rising
To sealing function；Communication helix 2 is exactly inserting tube (magnetic steering inserting tube) is communicated with the inner cable of sucker rod 10；Because inserting tube (magnetic
It is oriented to inserting tube) there is certain space with the inwall of nacelle 9, detection centralizer 4 can make inserting tube placed in the middle, while reduction inserting tube is in nacelle 9
Rock；Deviational survey inserting tube 5 is core component, the magnetic signal that reception is launched by strong magnetic short section, and the magnetic signal that will be gathered is by electricity
Cable passes to ground host machine；Detection damper 6 is reduced inserting tube is impacted during conveying is descending, and inserting tube shock-absorbing protecting is acted on；
Resistance to compression storehouse 7 completely cuts off external pressure and inserting tube is damaged.
Also include cooling absorber 3, cooling absorber 3 is arranged between passage and a detection centralizer 4, cooling heat absorption
The one end of body 3 is fixedly connected with the other end of detection centralizer 4, and the cooling other end of absorber 3 is fixed with the one end of helix 2 that communicates
Connection.Inserting tube can produce heat in the course of the work, and inserting tube operating temperature limit is 85 degree, by absorber that inserting tube is warm
Amount is transferred out to be come, and ensures inserting tube normal work.
Also include three drop resistance devices 8, three drop resistance devices 8 are evenly distributed in resistance to compression storehouse 7.Sucker rod 10 promotes magnetic steering to visit
Producing frictional resistance, drop resistance device during pipe conveying device with fiberglass inwall can reduce frictional resistance.
Embodiment 2
In November, 2016, it was a bite " L " type well, row that Zheng tries 76 flat 1 wells in petrochina Jincheng, Shanxi Qinshui Zheng Zhuan blocks
Adopted for six years, present gas production is very low, horizontal well faces to be scrapped.In order that Zheng tries the 76 flat secondary utilizations of 1 well, determine to bore one
Mouthful directional well is mated with, and realizes the transformation volume increase of " L " type well, docking operation embodiment 1 " L " type well docking visited with magnetic steering
Pipe conveying device realizes that position is docked, as shown in Figure 2.
Concretely comprise the following steps：
1. magnetic steering inserting tube 5 is arranged in conveying device, specific installation steps are as follows：
(1) by sucker rod 10 through the excessive block 1 of connection, communication cable one end and the helix 2 one that communicates in sucker rod 10
End connection；
(2) the communication other end of helix 2 sequentially passes through cooling absorber 3 and a hollow shaft 4-1 for detection centralizer 4；
(3) cooling absorber 3 is spirally connected with the first cabin 9-1, the locating piece 4-2 and the first cabin 9-1 of detection centralizer 4
Inwall abut, another detection centralizer 4 locating piece 4-2 is abutted with the inwall of the second cabin 9-2, and by sucker rod 10 and company
The snapping of degree of taking over block 1；
(4) the communication other end of helix 2 is connected with the binding post of magnetic steering inserting tube 5, and the one end of magnetic steering inserting tube 5 stretches into first
In the 9-1 of cabin in the hollow shaft 4-1 of detection centralizer 4, the other end stretches into the hollow shaft 4-1 of the detection centralizer 4 in the second cabin 9-2
It is interior, while the first cabin 9-1 and the second cabin 9-2 are coupled together by draw-in groove with fixture block；
2. magnetic steering inserting tube 5 is transported to " L " type well and directional well docking location using sucker rod 10；
3. directional well drilling position and shaft building, upper rig are selected；
4. rig is opened, well probing is oriented, directional well is drilled into directly over vertical depth distance " L " type well end before 100m,
Stop drilling well, pull out of hole, well workover machine equipment on " L " type well；
5., to magnetic joint is entered under in directional well, magnetic steering docking software constantly corrects target spot data, guiding directional well track；
6. open rig and continue drilling well, when directional well is drilled into 10 meters directly over vertical depth distance " L " type well end, directional well
Stop drilling, conveying device is removed into " L " type well, then directional well continues to creep into and achieved a butt joint until with " L " type；
7. directional well carries out completion practice.
" L " the type well docking that the present embodiment is provided can be in method to discarding and facing the coal bed gas horizontal well scrapped, energy
The effect for enough play volume increase, synergy, re-using.
Embodiment described above is only the present invention preferably specific embodiment, protection scope of the present invention not limited to this,
Any those of ordinary skill in the art in the technical scope of present disclosure, the technical scheme that can be become apparent to
Simple change or equivalence replacement, belong to protection scope of the present invention.
Claims (6)
1. a kind of " L " type well docking magnetic steering inserting tube conveying device, it is characterised in that including connecting excessive block (1), communication spiral shell
Spin line (2), two detection centralizers (4), detection damper (6), nacelle (9) and sucker rods (10)；
There is cavity, the communication helix (2) is interior positioned at the excessive block (1) of connection, institute in the middle of the excessive block (1) of connection
Stating detection centralizer (4) includes hollow shaft (4-1) and three locating pieces (4-2), described in three locating pieces (4-2) are fixed on
On the outer wall of hollow shaft (4-1), three locating pieces (4-2) angle between any two is 120 °；
The nacelle (9) includes the first cabin (9-1) and the second cabin (9-2), and described first cabin (9-1) one end has passage, described
Second cabin (9-2) one end is resistance to compression storehouse (7), and the first cabin (9-1) other end inwall stretches out to form a circle draw-in groove, described
Second cabin (9-2) other end outer wall stretches out the fixture block to be formed with the slotted engagement, and the draw-in groove coordinates with the fixture block
So that first cabin (9-1) and second cabin (9-2) couple together, the interior other end of first cabin (9-1) is provided with one
Individual detection centralizer (4), the locating piece (4-2) of detection centralizer (4) is supported with the inwall of first cabin (9-1)
Connect, the interior other end of second cabin (9-2) is provided with another detection centralizer (4), described to detect determining for centralizer (4)
Position block (4-2) abuts with the inwall of second cabin (9-2)；
Detection damper (6), the spy are additionally provided between another described detection centralizer (4) and the resistance to compression storehouse (7)
Survey damper (6) one end with another described survey centralizer (4) one end be fixedly connected, it is described detection damper (6) other end and
The resistance to compression storehouse (7) is fixedly connected, and a hollow shaft (4-1) for detection centralizer (4) is stretched into magnetic steering inserting tube (5) one end
Interior, magnetic steering inserting tube (5) other end is stretched into the hollow shaft (4-1) of another detection centralizer (4), the connection
Excessively block (1) is in the passage and outer wall is fixedly connected with the inwall of the passage, and the sucker rod (10) is through described
Connect excessive block (1) and is provided with communication cable, the communication with described connection in excessive block (1) snapping, the sucker rod (10)
Helix (2) one end is connected with the communication cable in the sucker rod (10), and described communication helix (2) other end passes through one
The hollow shaft (4-1) of detection centralizer (4) is simultaneously connected with the binding post of the magnetic steering inserting tube (5).
2. according to claim 1 " L " type well docking magnetic steering inserting tube conveying device, it is characterised in that described first
The cooling absorber (3) with cavity is additionally provided with cabin (9-1), cooling absorber (3) is arranged on the passage and one
Between detection centralizer (4), described cooling absorber (3) outer wall is provided with external screw thread, and the first cabin (9-1) inwall is set
There is the external screw thread coordinated with the external screw thread, the cooling absorber (3) is spirally connected with first cabin (9-1), the communication spiral shell
Spin line (2) one end sequentially pass through it is described cooling absorber (3) and one it is described detect centralizer (4) hollow shaft (4-1) and with
The binding post connection of the magnetic steering inserting tube (5).
3. according to claim 1 " L " type well docking magnetic steering inserting tube conveying device, it is characterised in that also including six
Individual universal wheel (8), wherein three universal wheels (8) are evenly distributed on resistance to compression storehouse (7) outer wall, it is universal described in the other three
Wheel (8) is evenly distributed on the first cabin (9-1) outer wall.
4. according to described in claim 1 " L " type well docking magnetic steering inserting tube conveying device, it is characterised in that the detection subtracts
Shake device (6) is quality of rubber materials.
5. a kind of " L " type well docking calculation, it is characterised in that comprise the following steps：
By magnetic steering inserting tube (5) in conveying device,
The magnetic steering inserting tube (5) is transported to " L " type well and directional well docking location using sucker rod (10)；
Selection directional well drilling position and shaft building, upper rig；
Rig is opened, well probing is oriented, directional well is drilled into directly over vertical depth distance " L " type well end before 100m, stops boring
Well, pulls out of hole, well workover machine equipment on " L " type well；
To magnetic joint is entered under in directional well, magnetic steering docking software constantly corrects target spot data, guiding directional well track；
Open rig and continue drilling well, when directional well is drilled into 10 meters directly over vertical depth distance " L " type well end, directional well stops boring
Enter, conveying device is removed into " L " type well, then directional well continues to creep into and achieved a butt joint until with " L " type；
Directional well carries out completion practice.
6. according to the one kind described in claim 5 " L " type well docking calculation, it is characterised in that the installation of the magnetic steering inserting tube (5)
Step is as follows：
By the sucker rod (10) through the excessive block (1) of connection, communication cable one end and the spiral shell that communicates in the sucker rod (10)
Spin line (2) one end connects；
Described communication helix (2) other end sequentially passes through cooling absorber (3) and a hollow shaft for detection centralizer (4)
(4-1)；
By it is described cooling absorber (3) be spirally connected with the first cabin (9-1), one it is described detection centralizer (4) locating piece (4-2) and
The inwall of first cabin (9-1) is abutted, the locating piece (4-2) and the second cabin (9- of another detection centralizer (4)
2) inwall is abutted, and by the sucker rod (10) and excessive block (1) snapping of connection；
Communication helix (2) other end is connected with the binding post of the magnetic steering inserting tube (5), the magnetic steering inserting tube (5)
One end is stretched into first cabin (9-1) in the hollow shaft (4-1) of detection centralizer (4), and the other end stretches into described
In the hollow shaft (4-1) of the detection centralizer (4) in the second cabin (9-2), while by first cabin (9-1) and institute
The second cabin (9-2) is stated to be coupled together with fixture block by draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149712.3A CN106894780B (en) | 2017-03-14 | 2017-03-14 | Magnetic guide probe pipe conveying device for L-shaped well butt joint and butt joint method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149712.3A CN106894780B (en) | 2017-03-14 | 2017-03-14 | Magnetic guide probe pipe conveying device for L-shaped well butt joint and butt joint method |
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| Publication Number | Publication Date |
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| CN106894780A true CN106894780A (en) | 2017-06-27 |
| CN106894780B CN106894780B (en) | 2023-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922578A (en) * | 2021-02-06 | 2021-06-08 | 中国地质科学院勘探技术研究所 | Multi-well convergence communication water-resisting and heat-extracting geothermal exploitation construction method |
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